package com.lh.java.basic.datatype;

public class TestSystem {
	public static void main(String[] args) throws Exception {  
        System.out.println("Hello Out");  
        System.err.println("Hello Error");  
        byte[] b = new byte[1024];  
        int count = System.in.read(b);
        System.out.println(count);
        b[count-2]=97;
//        count+=1;   
        System.out.println("haha");
        System.out.println(new String(b, 0, count));  
       
    }  
}
